Portion of an internal combustion engine



FIG. 1 is a perspective view of a portion of a portion of an internalcombustion engine showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a right side elevation view thereof; and

FIG. 6 is a left side elevation view thereof.

FIG. 7 is a perspective view of a portion of an internal combustionengine according to a second embodiment of the present design;

FIG. 8 is a top plan view thereof;

FIG. 9 is a front elevation view thereof;

FIG. 10 is a rear elevation view thereof;

FIG. 11 is a right side elevation view thereof; and,

FIG. 12 is a left side elevation view thereof.

The broken lines shown in FIGS. 1-12 are for illustrative purposes onlyand form no part of the claimed design.

The ornamental design for a portion of an internal combustion engine, asshown and described.